SU1655623A1 - Process of production of round members - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in the manufacture of glass products. The purpose of the invention is to expand technological capabilities and increase productivity. The workpiece 5 is placed in contact with another workpiece in the cavity of the deforming tool 1 and is deformed by the rolling tool 3 associated with a sphere-moving compactor. In the process of deformation, the metal flows from the center to the periphery and, by skimming the deforming tool 1, is converted into an article 6 of the type cup. In the deformation process, two blanks are immediately subjected to shaping: one of which is directly in contact with the rolling tool 3. and the other with the first blank. Between the blanks placed a layer of lubrication. 2 Il.

Description

fig {

The invention relates to the processing of metal pressures and can be used in the manufacture of glass products.

The purpose of the invention is the expansion of technological capabilities through the production of glass products and an increase in productivity.

FIG. 1 scheme of the proposed method of manufacturing products; in fig. 2 shows section A-A in FIG. one.

A device for carrying out the method comprises a cylindrical deforming tool 1 (punch) in which an ejector 2 is placed, receiving movement from a drive (not shown), and also a rolling tool 3 (matrix) associated with a spherical-movable mechanism mounted on a cross member (not shown ). In the deforming tool 1, along its height, there is a radial groove 4 for feeding the workpiece 5 into the central cavity of the tool 1. To remove the stamped product 6, there is a removable ring 7 driven from the rods 8 of special hydraulic cylinders (not shown).

In the initial position in the device, the ejector 2 is in the tool 1 in the lowest position. Its end face is located slightly below the lower surface of the radial notch 4. The rolling tool (die) 3 is in the upper position. The metal of the next deformable workpiece partly goes to the end surface of the tool 1; The removable ring 7 is at such a height relative to the end surface of the tool 1, at which, at the time of deforming the product, close to the final one, it begins to contact it with its end surface.

The implementation of the method is carried out as follows.

The next workpiece 5 is set by a special device (not shown) through the radial cut-out 4 into the axial cavity of the tool 1. Then, the traverse, the running-in mechanism and the rolling-in tool 3 are moved downwards. The rolling-in tool 3 due to the interaction of the traverse (not shown) with adjustable stops (not shown) stops at a certain distance from the end surface of the tool 1, thereby determining the thickness of the product itself, if the product is flat, and the thickness of the bottom, if this product is hollow. The desired bottom thickness of the product can be obtained by limiting the movement of the rolling tool 3 in the axial direction with the help of special adjustable stops mounted on the press frame (not shown). By changing the bottom thickness in the process of deforming the workpiece, you can get hollow products with variable wall thickness

with a relief on the outer surface. After that, the ejector 2 starts to move upwards. Under the action of the ejector 2, the workpiece 5 also moves upwards, and thus, when exposed to

0 of the newly filed workpiece 5, at the ends of which a layer of viscous lubricant is applied, on the previously located (and partially deformed) metal is fed into the rolling tool 3. At a localized distance

5 deformation of the metal flows intensively in the radial direction from the center to the periphery, meeting with the side walls of the rolling tool 3, it changes its flow to the axial, i.e. rounds tool 1, resulting in the formation of the finished product 6 When in contact with the force of the end surface of the product 6 with a removable ring 7, the skewed end of the product decreases. After the end of the process, the rolling tool 3 goes up, freeing the working space of the press to unload the product. The removable ring 7 under the action of the rods 8 of the hydraulic cylinders moves upwards and removes the extruded product 6 from the deforming tool 1. When the extruded product is removed, the next partially deformed billet will not be removed from the central hole of the tool 1, since it is in the pressed state nii. Ejector 2 goes down and occupies an extremely low position. After which, the product manufacturing cycle can be repeated.

0 The proposed technical solution was tested in the manufacture of hollow products from aluminum alloy AD1. A bar stock with a diameter of 50 mm was used. Glasses and bowls were obtained with an outer diameter of 120 mm, a wall thickness of 8 mm and a bottom of 6-10 mm. In the bottom of the bowls and glasses received holes with a diameter of 55-75 mm.

Testing was carried out on a hydraulic press with a force of 3000 kN, equipped with

0 with a special mechanism for imparting oscillatory motion to the rolling tool (with an oscillation frequency of 500 V / min) and a hydraulic cylinder for moving the pusher. Depending on the feed rate

The force on the pusher changed 18–40 tf.

Claims (1)

Invention Formula A method of manufacturing round products in terms of which the preform is predominantly in the form of a bar cut is placed into one of the cylindrical deforming tools and deformed by moving the workpiece material from the center to the periphery of the other rolling tool with simultaneous axial feeding of the workpiece into direction to the rolling tool, characterized in that, with the aim of expanding technological capabilities by obtaining glass-type products and increasing the manufacturer before deforming into a deforming tool, coaxially with the first workpiece and in contact with it, five An additional billet is poured, on the end surfaces of which a preliminary layer of viscous lubricant is applied, in the process of deforming as material moves from the center to the periphery, its end sections bend around the cylindrical surface of the deforming tool to form a cup-type product, and the first billet is fed carried out with an additional billet, which in the final stage of deformation of the first billet is partially subjected to joint with the first one. FIG. 2